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pH Controller and Pump — main photograph
Hanna InstrumentsAvailability: Supplied to order

pH Controller and Pump

Reference BL7916-1

The BL7916 combines a pH meter with a chemical dosing pump in order to maintain a desired set point in process applications.

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At a glance

Reference
BL7916-1
Category
pH, Conductivity & Water Analysis
Equipment family
Industry/Industrial, Industry/Industrial/Chemical manufacturing, Industry/Industrial/Water treatment, Industry/Water, Industry/Water/Wastewater, Industry/Water/Drinking water, Industry/Industrial/Plat

Overview

The BL7916 combines a pH meter with a chemical dosing pump in order to maintain a desired set point in process applications.

Maintenance contract — AxiTech provides planned preventive maintenance for pH Controller and Pump from Hanna Instruments: scheduled visits, safety checks, periodic calibration and a documented service report, backed by a contractual response time.

Troubleshooting, repair and spare parts — our ph, conductivity & water analysis engineers diagnose and repair pH Controller and Pump on site or in the workshop, fit genuine spare parts and recommission the equipment after performance verification.

Features

  • Two advanced instruments in one compact unit.
  • Convenient installation with all controls on front panel.
  • Widely used in plating, wastewater treatment, water treatment and swimming pools.

Technical specifications

Specifications
Sku
BL7916-1 pH Range 0.00 to 14.00 pH pH Resolution 0.01 pH pH Accuracy (@20°C/68°F) ±0.01 pH Typical EMC Deviation ±0.1 pH Input Impedance 10¹² Ohm Dosage Proportional, acid or base, user selectable Dosing Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Alarm Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Calibration Offset: ±1 pH with trimmer Slope: 85 to 115% with trimmer Recorder Output 4 to 20 mA (isolated) Power Supply 10/115V ±15% 50/60Hz (40W) Environment 0 to 50°C (32 to 122°F) RH max 95% non-condensing Dimensions 221 x 142 x 181 mm (8.7 x 5.6 x 7.1'') Weight Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
Dosage
Proportional, acid or base, user selectable Dosing Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Alarm Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Calibration Offset: ±1 pH with trimmer Slope: 85 to 115% with trimmer Recorder Output 4 to 20 mA (isolated) Power Supply 10/115V ±15% 50/60Hz (40W) Environment 0 to 50°C (32 to 122°F) RH max 95% non-condensing Dimensions 221 x 142 x 181 mm (8.7 x 5.6 x 7.1'') Weight Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
Weight
Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
PH Range
0.00 to 14.00 pH pH Resolution 0.01 pH pH Accuracy (@20°C/68°F) ±0.01 pH Typical EMC Deviation ±0.1 pH Input Impedance 10¹² Ohm Dosage Proportional, acid or base, user selectable Dosing Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Alarm Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Calibration Offset: ±1 pH with trimmer Slope: 85 to 115% with trimmer Recorder Output 4 to 20 mA (isolated) Power Supply 10/115V ±15% 50/60Hz (40W) Environment 0 to 50°C (32 to 122°F) RH max 95% non-condensing Dimensions 221 x 142 x 181 mm (8.7 x 5.6 x 7.1'') Weight Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
Dimensions
221 x 142 x 181 mm (8.7 x 5.6 x 7.1'') Weight Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
Calibration
Offset: ±1 pH with trimmer Slope: 85 to 115% with trimmer Recorder Output 4 to 20 mA (isolated) Power Supply 10/115V ±15% 50/60Hz (40W) Environment 0 to 50°C (32 to 122°F) RH max 95% non-condensing Dimensions 221 x 142 x 181 mm (8.7 x 5.6 x 7.1'') Weight Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
Environment
0 to 50°C (32 to 122°F) RH max 95% non-condensing Dimensions 221 x 142 x 181 mm (8.7 x 5.6 x 7.1'') Weight Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
Power Supply
10/115V ±15% 50/60Hz (40W) Environment 0 to 50°C (32 to 122°F) RH max 95% non-condensing Dimensions 221 x 142 x 181 mm (8.7 x 5.6 x 7.1'') Weight Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
Alarm Contact
Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Calibration Offset: ±1 pH with trimmer Slope: 85 to 115% with trimmer Recorder Output 4 to 20 mA (isolated) Power Supply 10/115V ±15% 50/60Hz (40W) Environment 0 to 50°C (32 to 122°F) RH max 95% non-condensing Dimensions 221 x 142 x 181 mm (8.7 x 5.6 x 7.1'') Weight Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
PH Resolution
0.01 pH pH Accuracy (@20°C/68°F) ±0.01 pH Typical EMC Deviation ±0.1 pH Input Impedance 10¹² Ohm Dosage Proportional, acid or base, user selectable Dosing Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Alarm Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Calibration Offset: ±1 pH with trimmer Slope: 85 to 115% with trimmer Recorder Output 4 to 20 mA (isolated) Power Supply 10/115V ±15% 50/60Hz (40W) Environment 0 to 50°C (32 to 122°F) RH max 95% non-condensing Dimensions 221 x 142 x 181 mm (8.7 x 5.6 x 7.1'') Weight Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
Dosing Contact
Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Alarm Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Calibration Offset: ±1 pH with trimmer Slope: 85 to 115% with trimmer Recorder Output 4 to 20 mA (isolated) Power Supply 10/115V ±15% 50/60Hz (40W) Environment 0 to 50°C (32 to 122°F) RH max 95% non-condensing Dimensions 221 x 142 x 181 mm (8.7 x 5.6 x 7.1'') Weight Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
Input Impedance
10¹² Ohm Dosage Proportional, acid or base, user selectable Dosing Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Alarm Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Calibration Offset: ±1 pH with trimmer Slope: 85 to 115% with trimmer Recorder Output 4 to 20 mA (isolated) Power Supply 10/115V ±15% 50/60Hz (40W) Environment 0 to 50°C (32 to 122°F) RH max 95% non-condensing Dimensions 221 x 142 x 181 mm (8.7 x 5.6 x 7.1'') Weight Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
Recorder Output
4 to 20 mA (isolated) Power Supply 10/115V ±15% 50/60Hz (40W) Environment 0 to 50°C (32 to 122°F) RH max 95% non-condensing Dimensions 221 x 142 x 181 mm (8.7 x 5.6 x 7.1'') Weight Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
Ordering Information
Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
Typical EMC Deviation
±0.1 pH Input Impedance 10¹² Ohm Dosage Proportional, acid or base, user selectable Dosing Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Alarm Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Calibration Offset: ±1 pH with trimmer Slope: 85 to 115% with trimmer Recorder Output 4 to 20 mA (isolated) Power Supply 10/115V ±15% 50/60Hz (40W) Environment 0 to 50°C (32 to 122°F) RH max 95% non-condensing Dimensions 221 x 142 x 181 mm (8.7 x 5.6 x 7.1'') Weight Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
PH Accuracy (@20°C/68°F)
±0.01 pH Typical EMC Deviation ±0.1 pH Input Impedance 10¹² Ohm Dosage Proportional, acid or base, user selectable Dosing Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Alarm Contact Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes Calibration Offset: ±1 pH with trimmer Slope: 85 to 115% with trimmer Recorder Output 4 to 20 mA (isolated) Power Supply 10/115V ±15% 50/60Hz (40W) Environment 0 to 50°C (32 to 122°F) RH max 95% non-condensing Dimensions 221 x 142 x 181 mm (8.7 x 5.6 x 7.1'') Weight Approximately 5 kg (11 lb.) Ordering Information Each pump is supplied complete with: discharge and suction valves, LDPE tubing, 7 m (23'), power cord, and instruction manual.
Service coverage

AxiTech maintains, repairs and supplies this equipment for hospitals, clinics, laboratories and imaging centres.

Maintenance contracts for pH Controller and Pump

AxiTech provides preventive maintenance contracts for pH Controller and Pump. Each contract fixes a schedule of planned visits in which our biomedical engineers inspect the equipment, replace wear parts before they fail, and verify that it still performs inside the manufacturer’s tolerances.

Every visit includes calibration and performance verification, and closes with a documented maintenance report you can present during an accreditation audit. Spare-parts availability and a guaranteed response time are written into the contract, so a breakdown never leaves a department waiting for an answer.

Plan at least one preventive maintenance visit per year, and a second visit for equipment in continuous or critical use.

  • Planned preventive maintenance visits at a fixed interval
  • Calibration and performance verification against the manufacturer’s specifications
  • A documented maintenance report after every intervention
  • Guaranteed availability of spare parts and consumables
  • A contractual response time when the equipment fails

Discover our maintenance contracts

Planned preventive maintenance and calibration under contract

Troubleshooting and repair for pH Controller and Pump

When pH Controller and Pump fails, our engineers start with a structured diagnostic: error codes, electrical and mechanical checks, and a functional test against the equipment’s own specification. That tells us whether the fault is a consumable, a worn part or a board-level failure before any part is ordered.

Straightforward faults are repaired on site so the department loses as little time as possible. Anything that needs a workbench, a full strip-down or a specialised spare part goes to our workshop and comes back only after a complete post-repair test and, where the equipment requires it, recalibration.

Faults we see most often on this type of equipment

The faults we see most often are worn moving parts, power-supply and control-board failures, sensors that have drifted out of tolerance, and fluid or air paths that have become blocked or contaminated.

Discover our troubleshooting and repair service

Diagnostics, corrective repair and spare parts in the workshop
Troubleshooting

How to troubleshoot pH Controller and Pump

Work through these checks before you escalate. They are the same first-line sequence our biomedical engineers run on arrival, and they either clear the fault or narrow it down enough that the intervention starts with the right spare part in the van.

  1. Capture the fault before you touch anything: write down the exact error code or message, the serial number from the rating plate, what the operator was doing and whether the fault clears on a restart.

  2. Confirm the power supply end to end — wall outlet, mains lead, fuse and any UPS or stabiliser in between. A device that is intermittently dead has a supply fault far more often than an internal one.

  3. Check the consumables and wear parts — filters, seals, tubing, probes, batteries — and note when each was last replaced. Anything past its service interval is the first suspect.

  4. Reproduce the fault once, deliberately, and record the sequence: what the operator did, what the device displayed, and whether a full power cycle clears it.

  5. If the fault is still there, escalate with the evidence. Send AxiTech the model, serial number, error code and the checks you have already run, and an engineer will come back with a diagnosis, a repair quote and a spare-parts lead time for pH Controller and Pump.

What to send us when you report the fault

  • Manufacturer, model and serial number, from the rating plate
  • The exact error code or message, and the screen it appears on
  • When the fault started, how often it occurs and what triggers it
  • A photograph of the display or of the fault, and the last maintenance report

If the fault survives all five steps, stop using pH Controller and Pump and open a repair request. Continuing to run equipment through a fault it cannot clear turns a component failure into a board-level one, and on devices used for diagnosis or therapy it puts the result — and the patient — in doubt.

Discover our troubleshooting and repair service

Buying and installing pH Controller and Pump

AxiTech supplies pH Controller and Pump together with the accessories and consumables it needs to enter service. We handle importation, delivery and installation, then commission the equipment on site so that it is verified against its specification before the first patient or the first sample.

Installation is followed by training for the users and for your biomedical team, warranty registration, and — if you want it — a maintenance contract that takes over the day the warranty ends, so the equipment never spends a period without planned service.

Discover our equipment sales service

Delivery, installation, commissioning and user training
Questions we are asked

Frequently asked questions about Hanna Instruments pH Controller and Pump

Yes. AxiTech services pH Controller and Pump, either under a maintenance contract or as a one-off intervention. Our biomedical engineers cover preventive maintenance, calibration, corrective repair and spare-parts supply for this equipment.

Related equipment

Other Hanna Instruments equipment we supply, install and maintain.