Model : 6503 pH, ORP, Temperature In-line Controller

Description
1/ 4 DIN panel mount ORP controller/ transmitter, microprocessor based, password protected with membrane keypad. LCD displays ORP or pH and temp. Meter has dual SPDT Hi/ Lo relays, with programmable hysteresis and a reversible, isolated and programmable 4-20 mA output. Connectors are dual BNC for pH/ ORP and spade lug type. ATC is 10K thermistor or simulation resistor. Power 115 / 230V AC.
Controls ORP & measures pH
Offset calibration for ORP
Set point security code protection
Dual on/ off relays
0.5 high LCD display
Auto/ manual temp. compensation
Power down memory backup
Audio feed back touch keys
1/ 4 DIN housing
Specifications
pH Range : -2.00 to 16.00 pH
pH Resolution : 0.01 pH
pH Accuracy : ± 0.01pH ± 1 digit

ORP Range : -1999 to 1999 mV
ORP Resolution : 1 mV
ORP Accuracy : ± 0.1% ± 1 digit

Temp. Range : 0 to 115 ° C
Temp. Resolution : 0.1 ° C
Temp. Accuracy : ± 0.2 ° C ± 1 digit

Current Output
Isolated current output: Reversible & programable 4 to 20 mA
Isolation voltage: 500V DC maximum
Transmitter load: 550 ohms maximum

General
Input impedance: > 10exp( 13) ohms
Default ORP buffer: 86mV
Temperature compensation: Auto/ manual ( thermistor 10kw at 25 ° C
pH buffer recognition: 4.00. 6.86. & 9.18
pH slope recognition: ± 30%
Relay output ( resistive load) : 5amp at 115V AC or 2.5 amp at 230V AC
Relay set point hysteresis: User programable
Power failure back up: Yes
Power source: 115V AC or 230V AC, 50/ 60 hz
Weight: 750 grams