HI 8710 pH regulator
direct connection to pH electrodes / fixed or automatic temperature compensation / 4-20 mA analog output / IP44 (Front) / 1 x alarm relay and 1 x control relay

The HI 8710 pH regulator is a two point discontinuous regulator designed to be installed in a control cabinet. The HI 8710 pH regulator can be used in many industrial sectors. The pH value regulation is made through a relay which can be connected to a metering pump. The front of the HI 8710 pH regulator is offers a polystyrene cover (IP44) to be used in the industrial sector. The HI 8710 pH regulator is handled by means of keys at the front panel where the display is also located. Front LEDs indicate the user the mode in which the HI 8710 pH regulator is operating. Three modes can be selected through a switch: On, Off and auto modes. Additionally, built-in test functions allow the user to get fast checking of both the sensor and the internal electronics. The pH electrode can be directly connected to the pH regulator. Maximum cable length: 10 m. For longer distances, an analog input can be used (4-20 mA). In this case, it is necessary to install a transducer in the measurement place. This transducer will convert the pH value into a 4-20 mA signal. The HI 8710 pH regulator has an analog output (0/4-20 mA) to send the average pH value to other devices. At the following link you will find all the pH regulators available at PCE-Instruments.

View or print user's manual of the HI 8710 pH regulator

- Direct connection to pH electrodes
- an alarm relay and a control relay
- Two-point regulation

- 4-20 mA input
- Input resistance: 10¹²Ω
- Setting of the maximum dosing time

Technical specifications

Measurement Range

pH - 2.00 ... 16.00

Resolution

pH 0.01

Accuracy

±0.02 pH (0 ... 100 ºC)
±0.05 pH (-20 ... 0 ºC)
Analog input: ±0.05 %

Resistance

10¹²Ω

Analog input

4-20 mA

Power supply for the amplifier electrode

±5 V, 150 mA

Calibration

Absolute zero: ± pH 2
Transconductance: 80 to 110 %

Automatic compensation

fixed or automatic with Pt100 probe
(-20 ... 100 ºC)

Control mode

2 point regulation

Display

LCD display

Analog output

0/4 - 20 mA

Alarm / control relay

2 to, 240 V, power-free

Operation modes

OFF, AUTO, ON

Maximum dosing time

5 to 60 minutes

Temperature

0 ... +50 ºC

Humidity

< 95% r.H. (non-condensing)

Case

black anodized aluminium
(ABS in back and front)

Dimensions

135 mm

Panel-mount dimensions

141 x 69 mm

Protection

Front: IP 44

Weight

1 kg

Power supply voltage

230 V

Delivery contents
1 x HI 8710 pH regulator and user's manual

Additional accessories

- At the following link you will find pH electrodes with their accessories

Contact:
PCE Instruments UK Limited
Unit 11 Southpoint Business Park
Ensign Way, Southampton
United Kingdom, SO31 4RF
Phone: +44(0) 23 809 870 30
Fax: +44(0) 23 809 870 39

Contact:
PCE Americas Inc.
1201 Jupiter Park Drive, Suite 8
Jupiter 33458 FL
USA
Phone: +1-410-387-7703
Fax: +1-410-387-7714

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