1
1 Introduction
2 Installation
These instruments are microprocessor based tempera-
ture, process and valve controllers. They can measure,
display or control process variables such as tempera-
ture, pressure, flow and level from a variety of inputs.
Depemding on the model group, three sizes are avail-
able: 1/16 DIN (48 x 48 mm front). 1/8 DIN (48 x 96mm
front) and 1/4 DIN (96 x 96mm front).
The operating voltage is either 100-240V at 50/60 Hz or
24V-48V AC/DC depending on the model purchased.
EEPROM technology protects against data or configu-
ration loss during power outages.
Inputs are user configurable for connection to thermo-
couple and RTD probes, as well as linear process signal
types such as mVDC, VDC or mADC. Output options
include relays, SSR drivers, triacs or linear mV/voltage
modules. These can be used for process control, valve
control, alarms or retransmission of the process vari-
able or setpoint to external devices such as data re-
corders or PLC’s. A Transmitter Power Supply option
module can provide an unregulated 24V DC (22mA)
auxiliary output voltage for external signal transmitters.
Alarm indication is standard on all instruments. Alarms
may be set as process high or low, deviation (active
above or below controller setpoint), band (active both
above and below setpoint), or control loop types. Mod-
els with a heater current input also have high, low or
short circuit heater break alarms based on control load
current. These alarms can be linked to any suitable
output. Alarm status is indicated by LED’s or the alarm
status screen.
Controllers can be programmed for on-off, time pro-
portioning, or current proportioning control implemen-
tations, depending on the output modules fitted, and
feature manual or automatic tuning of the PID param-
eters. A secondary control output is available when ad-
ditional output modules are fitted. Valve Motor Drive
(Three Point Stepping Control) is possible on some
models. Optional analog controller Remote Setpoint
inputs included in the range. Control functions, alarm
settings and other parameters are easily adjusted from
the front keypad or via PC based configuration soft-
ware.
Limit Controllers shut down a process in order to pre-
vent possible damage to equipment or products. They
have latching relay, which cannot be reset until the pro-
cess is in a safe condition. Limit controllers work inde-
pendently of the normal process controller and have
approvals for safety critical applications.
Unpacking
1. Remove the product from its packing. Retain the
packing for future use, in case it is necessary to
transport the instrument to a different site or to re-
turn it to the supplier for repair/testing.
2. The instrument is supplied with a panel gasket and
push fit fixing strap. A single sheet concise manual
is also supplied in one or more languages. Examine
the delivered items for damage or defects. If any are
found, contact your supplier immediately.
Installation
Installation and configuration should be per-
formed only by personnel who are technically
competent and authorized to do so. Local reg-
ulations regarding electrical installation and
safety must be observed.
Figure 1. Main Dimensions
1/4 - DIN & 1/16 - DIN Instruments
1/8 - DIN Instruments
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