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PATHFINDER MODEL
EMIT-PH
 Spec
Sheet |
The
Model EMIT-PH (encapsulated miniature isolated
transmitter) is a 2-wire, 4-20 mA pH transmitter featuring input to
output isolation, high performance and small size.
The transmitter accepts as its input any pH electrode
via a BNC coaxial connector. It transforms the probe signal to a 4 to
20mA current proportional to the pH level. This output may be
transmitted over two wires to a control location, the same 2 wires
provide power to the transmitter. Any D.C. power supply from 12 to 36V
may be used. There are two adjustments on the transmitter to standardize
probes for "Slope" and "Cal". The output can be monitored with a loop
powered meter, a loop resistor or a multimeter during the
standardization procedure.
Temperature compensation is automatic with use of a
platinum resistance temperature probe with an alpha of .00375W/W/ºC
and 1000W at 0°C. Manual temperature
compensation is achieved with use of a fixed resistor on the transmitter
terminal strip.
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Specifications
Input: 0-14pH Output: 4-20mA
Power Supply: 12 to 36VDC Load Resistor: 0 to 750W at
24VDC
Linearity: ± .02 pH units Input to Output Isolation: 1000V RMS
Operating Temperature Range: -25 to +70ºC Temperature Compensation: Manual or automatic
Reverse Polarity Protection: Internal diode Dimensions: 2" × 2" × 1.25"
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PATHFINDER INSTRUMENTS
800-284-9698