12
1.0
GENERAL
DESCRIPTION
The ECD Model T80 transmitter is a single or dual channel, intelligent, multi-
parameter transmitter designed for the online continuous measurement of pH, ORP,
pION, dissolved oxygen, conductivity, resistivity and turbidity in a general purpose
industrial environment. The Model T80 transmitter digitally communicates with any
ECD S80 digital sensor, automatically configuring the transmitter’s menus and
display screens to the measured parameter.
The Model T80 transmitter can be loop powered, 24 VDC powered or 100-240 VAC line powered. The standard
configuration has a 4-20 mA output and a RS485 serial communication port with MODBUS®RTU output. A HART®
communication version (single channel version only) is also available. Alarm relays are optionally available on
either line powered transmitter.
1.1
FEATURES
Multi-Parameter, pH, ORP, Specific Ion, Dissolved Oxygen, Conductivity, Resistivity
Simple, user friendly menu structure
Noise free digital communication with sensors
Reads and writes calibration data to sensor
Dual Channel option has interactive channels, pH compensated readings, interfering ion corrections…
Non-Isolated 4-20 mA output and MODBUS® RTU standard, optional HART®
1.2
SPECIFICATIONS
1.2.1
I
NPUT SPECIFICATION
Digital protocol, all ECD S80 sensors
Optional analog to digital converter, 5 inputs [mV+, mV-, solution ground, temp + temp - (100 K-ohm)]
1.2.2
I
NPUT
R
ANGES
pH
-1.00 - 15.00 pH
ORP
-1500 - +1500 mV
pION
000.1 - 999.9, Auto Ranging: ppb ↔ ppm ↔ ppT (thousand)
Dissolved Oxygen
000.1 - 999.9, Auto Ranging: ppb ↔ 20.00 ppm, % SAT, mg/L
Conductivity
0.000 - 2.000, Auto Ranging: µS ↔ mS ↔ S
TDS 0.00 - 9999 ppm
Salinity (PSU) 0.12 – 43.00
Resistivity
0.00 - 50.00 MΩ
Turbidity
0 - 4000 NTU/FNU, 0 – 9999 ppm, mg/l, 0 - 100% % solids
Temperature
100 K-ohm TC, -30°C - 140°C
1.2.3
A
CCURACY
pH
0.02 pH
ORP
± 1 mV
pION
Specific to electrode type
Dissolved Oxygen
2% of range
