900 SERIES MULTI-PARAMETER MONITOR/CONTROLLER™

Outputs

4-20mA / 0-20mA Output
(Model 900M-3C only)

0-10V Recorder Output
The 900 Series 0-10V Recorder Output can be programmed to output 0-10 or 0-5 VDC and export signals from any input channel or derived value.

Relays and Alarms
The relays and alarms operate independently but may be programmed to work in conjunction. Relays and alarms may be set to trigger on measurement values rising above, falling below, In Window (within an upper and lower range of values), or Out Window (outside an upper and lower range of values) for any of the input channels or for derived % rejection.

RS-485 Output
(Model 900M-3C only)

The 900 Series features an RS-485 Serial Communications Output that streams measured and derived data in ASCII format.

PERCENT (%) REJECTION
The Percent Rejection measurement feature compares feed water to the permeate (product) water to determine the percent of dissolved solids removed or rejected by a filtration system thereby quantifying the effectiveness of water filtration systems.

	Conductivity	TDS	Resistivity	Salinity	pH	ORP/mV IN	Temperature
Ranges	0 µS – 200 mS	0 ppm – 200 ppt	10 KΩ – 40 MΩ	0 ppm – 200 ppt	0 – 14 pH	±2000 mV	0 – 250˚C
Accuracy	± 1% of reading	± 1% of reading	± 1% of reading	± 1% of reading	± 0.01 pH	± 2 mV	± 0.1˚C
Resolution	0.01 (<100 µS)   0.1 (<1000 µS) 1 (<10,000 µS) 0.01 (<100 mS) 0.1 (≤200 mS)	0.01 (<100 ppm)   0.1 (<1000 ppm) 1 (<10,000 ppm) 0.01 (<100 ppt) 0.1 (≤200 ppt)	0.01 (<100 kΩ)   0.1 (<1000 kΩ) 0.01 (<10 MΩ) 0.1 (≤40 MΩ)	0.001 (<10 ppt)   0.01 (<100 ppt) 0.1 (≤200 ppt)	0.01 pH	1 mV	0.1˚C/F
Auto   Temperature Compensation	0-71˚C   32-160˚F	0-71˚C   32-160˚F	0-71˚C   32-160˚F	0-71˚C   32-160˚F	0-71˚C   32-160˚F	–	–
Adjustable Temperature   Compensation	0 – 10%/˚C	0 – 10%/˚C	0 – 10%/˚C	0 – 10%/˚C	On/Off	–	–
Cond/TDS   Ratios Preprogrammed	KCl, NaCl, 442™	KCl, NaCl, 442™	–	KCl, NaCl, 442™	–	–	–
Adjustable   Cond/TDS Ratio Factor	0.20-7.99	0.20-7.99	–	0.20-7.99	–	–	–

900 Series Multi-Parameter Monitor/Controller Data Sheet