Georg Fischer 8750 Specifications

Signet 8750 pH/ORP Transmitters

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Check out the 9900 Transmitter
for your single channel needs

Features

Member of the ProcessPro® Family of Instruments

Panel Mount Pipe, Tank, Wall Mount

The Signet 8750 pH/ORP Transmitter is designed
for broad application and ease of setup and use. The
unit auto-configures for either pH or ORP use when
connected to Signet pH or ORP electrodes. Multiple
mounting options allow for installation best suited to
your particular application.

• Automatic temperature compensation

• Temperature display in °C or °F

• Hold and simulate functions

• Relay options available

• Output scaleability

• Optional dual output

• NEMA 4X/IP65 enclosure with self-healing
window

• EasyCal

LEAD FREE

Pb

RoHS

MEASURING EQUIPMEN

77CJ

COMPLIANT

Applications

The EasyCal menu features automatic buffer
recognition for mistake-proof pH or ORP electrode
calibrations. Intuitive software and the four button
keypad arrangement make it easy to access important
information such as pH or ORP, mV input, temperature,
calibration, relay setup menus and more.

• Neutralization Systems

• Heavy Metals Recovery

• Plating Control

• Scrubber Control

• Pool and Spa Control

• Environmental Study

• Water Treatment

• Water Quality Monitoring

• Waste Treatment

• Disinfection

Specifications

General

Accuracy ±0.03 pH, ±2 mV ORP
Display 2 x 16 LCD

Contrast User selectable, 5 levels

Material

Case PBT
Panel Case Gasket Neoprene
Window Polyurethane coated polycarbonate
Keypad Sealed 4-key silicone rubber

Electrical

Power 12 to 24 VDC ±10% regulated

(-1) 21 mA max. (-2) 220 mA max. (-3) 60 mA max.

Electrode Input Range pH 0 to 14 pH

Temp. 3K Balco, -25 °C to 120 °C -13 °F to 248 °F

ORP -1000 to +2000 mV, isolated

Current Output 4 to 20 mA, isolated, passive, fully adjustable and reversible

Max. Loop Impedance

Update Rate 0.5 seconds
Accuracy

Relay Output Mechanical SPDT contacts High, Low, Pulse, Off

Maximum Voltage Rating

Hysteresis User-adjustable Max 400 pulses/min.
Open-Collector Output High, Low, Pulse, Off
Optically isolated, 50 mA max, sink, 30 VDC max. pull-up voltage.
Hysteresis User-adjustable Max. 400 pulses/min.

Environmental

Operating Temperature -10 °C to 70 °C 14 °F to 158 °F
Storage Temperature -15 °C to 80 °C 5 °F to 176 °F
Relative Humidity 0 to 95%, non-condensing
Enclosure NEMA 4X/IP65 (front face only on panel mount); field mount is 100% NEMA 4X/IP65

Shipping Weight

0.6 kg 1.3 lb

Standards and Approvals

CE, UL, CUL
RoHS compliant
China RoHS
Manufactured under ISO 9001 for Quality and ISO 14001 for Environmental Management

50 Ω max. @ 12 V 325 Ω max. @ 18 V 600 Ω max. @ 24 V

±0.03 mA @ 25 °C, 24 V

5 A @ 30 VDC, or 5 A @ 250 VAC resistive load

10 KΩ I.D. resistance T+, T-

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