OPT-SNAP-ph-ORP

SNAP-ph-ORP SNAP-pH/ORP Differential Voltage Measurement Input Module

The SNAP-pH/ORP module provides two isolated channels of high-impedence voltage input, either -1.00 to +1.00 volts
or -0.50 to +0.50 volts. The module is ideal for differential voltage measurements and is used with pH or oxidation
reduction potential (ORP) probes for monitoring bodies of water.
 
The SNAP-pH/ORP module can be used with SNAP PAC brains and R-series controllers, legacy SNAP Ethernet-based
brains, and legacy serial B3000 and B3000-B brains.
 

Input Range	-1.00 V to +1.00 V for ORP probes -0.50 V to +0.50 V for pH probes
Resolution	40 µV when configured -1.00 V to +1.00 V 20 µV when configured -0.50 V to +0.50 V
Data Freshness (Maximum)	126 ms (63 ms per channel) when configured -1.00 V to +1.00 V 251 ms (125.5 ms per channel) when configured -0.50 V to +0.50 V
Input Filtering	-3 dB @ 2.4 Hz
DC Common Mode Rejection	>-120 dB
AC Common Mode Rejection	>-120 dB at 60 Hz
Maximum Survivable Input	±100 VDC or peak AC
Maximum Operating Common Mode Voltage	250 VDC or peak AC
Accuracy (% full scale)	0.05% when configured -1.00 V to +1.00 V 0.05% when configured -0.50 V to +0.50 V
Gain Temperature Coefficient	30 PPM/°C
Offset Temperature Coefficient	15 PPM/°C
Power Requirements	5 VDC (±0.15) at 170 mA
Input Resistance (Differential)	>10 Tera Ohms (each channel)
Ambient Temperature:   Operating   Storage	0 to 70 °C -25 to 85 °C
Torque, hold-down screws	4 in-lb (0.45 N-m)
Torque, connector screws	5.26 in-lb (0.6 N-m)
Agency Approvals	CE, RoHS, DFARS
Warranty	Lifetime