Specifications

MI 611-211 – October 2005 1. Introduction

Specifications

Sensors: Virtually any glass or antimony pH, ISE, or noble metal ORP sensor including the

following:

PH10 DolpHin™ Series pH Sensor

ORP10 DolpHin™ Series ORP Sensor

871A pH/ORP Sensor (see Note)

871PH pH/ORP/ISE Sensor (see Note)

EP459A Fluoride Sensor

EP460 pH/ORP Sensor

EP462 pH Sensor

EP466 pH Sensor

NOTE

871A-2, 871PH-1, and 871PH-2 Sensors, although compatible with 870ITPH

Transmitters, do not supply full sensor diagnostic capability.

Maximum Distance Between Sensor and Transmitter:

With preamplified sensor: 152 m (500 ft)

With non-preamplified sensor that utilizes a driven shield

(PH10-.N, 871A-1, -3; 871PH-5, -6): 15.2 m (50 ft)

Temperature Compensation Inputs:

100 ohm platinum RTD, 2- and 3-wire

1000 ohm platinum RTD, 2- and 3-wire

Balco 3000 ohm RTD

Ambient Temperature: -25 to +55° C

Relative Humidity: 0 to 95% noncondensing

Electromagnetic Compatibility (EMC): The Model 870ITPH Intelligent Transmitter complies

with the requirements of the European EMC Directive 89/336/EEC when the sensor cable and

I/O cables are enclosed in rigid metal conduit. (See Table 2.)

Power Supply Requirements (for 4 to 20 mA output): 12.5 to 42 V dc (see Figure 2)

Load Limitations (for 4 to 20 mA output): 0 to 1450 ohms (see Figure 2)