JENCO 6311, Operation Manual

Page: 32 / 36

32
pH Electrode Offset recognition
±
100 mV at pH 7.00
+108.3 mV/-91.7 mV at pH 6.86
pH Electrode Slope recognition ±
30% at pH 1.68, 4.00, 4.01, 9.18 10.01
& 12.46
Input impedance >10
12
Ω
Calibration end point sensing
Yes
Temperature
Temperature sensor Thermistor :10.00k Ω at 25 °C,
(User selectable) Resistor : Balco 3K
Ω
at 25 °C
RTD : pt-1000,
α
=0.00385
4-20 mA Output
Current output range 4 to 20 mA (isolated)
Current output scale user programmable
Maximum load 500 Ω
Accuracy ± 0.02mA
Isolation voltage 500VDC
Controller
Control type (five) ON/OFF control
Relay output (Resistive load only) 5A at 115VAC or 2.5A at 220VAC
GENERAL
Keys Audio feedback in all keys
Security protect 4-digit password
Communication RS485
Power: 115VAC or 230VAC 50/60Hz
Ambient Temperature range 0.0 to 50.0 °C
Display( pH/ORP :Temp.) 16mm : 8.5mm high LCD
Case IPT65, ¼ DIN case, depth 148mm
Weight 940 g
XI. WARRANTY