SPECIFICATIONS
Range:
0-14pH 0.01 pH resolution
+1000mV 1mV resolution
Display:
Dot matrix 4 line by 20 character backlid LCD display
Electrode:
BNC external of housing.
Temperature:
(pH only)
manual or automatic temp. Compensation
0-100
o
C.
Signal output:
4-20mA, electrically isolated from instrument.
4-20mA range software selected between 0 to 14pH
or 0 to +1000mV. Maximum termination impedance to
drive 20mA is 1000 Ohms.
Can also be setup to follow setpoint for signal driven
metering pumps.
Relay outputs:
2 relays
(S1 & S2)
switched active with neutral and
earth terminals. Contacts rated 240V 5AMPS
(non-inductive)
2 relays
(S3 & S4)
with potential free changeover
contacts. Timers can be activated to enable / disable
relay outputs for programmed times.
Set points:
All relays can be configured for up/down dosing.
Enable a Time delay of 1 to 5 minutes between
S3 & S4 if acid / alkaline dosing is required.
DPH-64 Instruction manual
PAGE 3
