COMECO TRIL0 User manual

Specifications
Input Signal
Maximum Input Current
Input Loop Power Supply
Output Signal
Total Measurement Error
Output Loop Power Supply
Output Signal at Input Failure
Input / Output Isolation
Maximum Line Load
Operating Temperature / Humidity
Protection Class
4...20 mA (nominal);
3.5...21 mA (operating)
50 mA
min. 3 VDC
4…20 mA, 2-wire
0.35% from span
8...32 VDC
< 2 mA
3750 VAC for 1 min
(U-8)/0.026 [Ω]
-25…70 °C / 0…95% RH
IP20
Warranty and Support
………………………….
serial number
………………………….
manufacturing date
QC check mark …….……(passed)
(stamp)
88 Slavyanska Str.
P.O.Box 378
Plovdiv 4000, BULGARIA
tel: [phone], 646524
fax: [phone], 646517
e-mail: [e-mail]
QD-8.2.4-WC
Warranty
COMECO warrants this product
to be free from defects in materials
and workmanship for 2 years. If your unit
is found to be defective within that time,
we will promptly repair or replace it.
This warranty does not cover accidental
damage, wear or tear, or consequential
or incidental loss. This warranty
does not cover any defects caused
by wrong transportation, storage, installation,
or operating (see 'Specifications').
Technical support
In the unlikely event that you encounter
a problem with your COMECO device,
please call your local dealer or contact
directly our support team.
COMECO Inc., P.O.Box 378, Plovdiv 4000, BULGARIA, tel: [phone], 646524, fax: 634089
e-mail: [email protected]g, WWW.COMECOGROUP.COM
TRIL0
for DIN-rail mounting
OPERATION MANUAL
Please read this Operation Manual before mounting and operating!
Save the Manual for future references!
LOOP-POWERED PASSIVE SIGNAL ISOLATOR
v5-06.09

Overview
The passive signal isolator TRIL0
is a compact and reliable 2-wire
analog current-to-current transmitter,
providing optical isolation between
the input and the output current loops
of up to 3750 VAC, and allowing
direct 4...20 / 4...20 mA conversion.
Mounting and Wiring
in
p
ut
output loop
0
100
200
300
400
500
600
700
800
900
1000
4 8 12 16 20 24 28 32
load R [ ]
Ω
supply voltage U [V]
Mounting
TRIL0 for DIN-rail mounting
is designed to be easily mounted
on every 35 mm rail conforming
to EN50022.
Wiring
♦Connect the input and
the output current loops
according to the left diagram.
♦In order to minimize
measuring errors, make sure
the connecting screws
are tightened enough.
Maximum line load
The maximum output load
at different output loop supply
voltages is given on the left chart.
Adjusting and Calibrating
Important note:
To protect the device
from damages
as a result of ESD,
always ground
yourself and the tools
and instruments
you are working with!
Z
S
Default adjustment
The device is factory calibrated
and does not require initial user calibration.
Calibration kit
♦current source with an accuracy
of at least ± 0.02%;
♦milliammeter with an accuracy
of at least ± 0.02%;
♦24 VDC power supply.
Calibration
It is recommended that the calibration
be checked at least once a year as well as
after any malfunction and/or repair.
We recommend calibration
at COMECO
CALIBRATING LABORATORY.
Nevertheless, if you intend to do
calibrations on your own, you can do so
via the ZERO ('Z') and SPAN ('S')
adjustment potentiometers, accessible
through the device front panel,
by following the procedure below:
♦Connect TRIL0 to power supply,
input source, and milliammeter
as shown on the wiring diagram
(see 'Mounting and Wiring').
♦Apply an input signal of 12 mA
and leave the unit for 15 minutes,
if possible at the ambient temperature
it is intended to work at.
♦Apply an input current of 4 mA
and adjust the 'Z' potentiometer
to get Iout = 4.00 mA.
♦Apply an input current of 20 mA
and adjust the 'S' potentiometer
to get Iout = 20.00 mA.
♦Repeat the previous 2 steps
until readings converge.
♦Secure the potentiometers with lacquer.