CTH
P. 1 / 3
EM-1909 Rev.1
INSTRUCTION MANUAL
MODEL
CTH
CT TRANSMITTER
(inverter use)
■
WIRING
• Do not install cables (power supply, input and output) close
to noise sources (relay drive cable, high frequency line, etc.).
• Do not bind these cables together with those in which noises
are present. Do not install them in the same duct.
■
AND ....
• The unit is designed to function as soon as power is
supplied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data sheet.
COMPONENT IDENTIFICATION
■
HOW TO OPEN THE FRONT COVER:
Position your finger on the hook at the top of front cover and
pull.
■
FRONT PANEL CONFIGURATIONS
The shape of base socket may be different
for some models.
BEFORE USE ....
Thank you for choosing M-System. Before use, check the
package you received as below.
If you have any problems or questions with the product,
please contact M-System's Sales Office or representatives.
■
PACKAGE INCLUDES:
Signal conditioner (body + base CT protector) ..... (1)
■
MODEL NO.
Check that model No. described on specification label is
exactly what you ordered.
■
INSTRUCTION MANUAL
This manual describes necessary points of caution when you
use this product, installation, connection and basic mainte-
nance procedures.
POINTS OF CAUTION
■
CONFORMITY WITH CE/LVD DIRECTIVE
(CE marking is unavailable for certain model suffix options.)
•␣ This equipment is suitable for use in Pollution Degree 2
environment and in Installation Category II, with the maxi-
mum operating voltage 300V.
Prior to installation, check that the insulation class of this
unit satisfies the system requirements.
• The equipment must be mounted inside a panel.
• The equipment must be installed such that appropriate
clearance and creepage distances are maintained to conform
to CE requirements. Failure to observe these requirements
may invalidate the CE conformance.
■
POWER INPUT RATINGS
• Power input ratings are specified by the model number
suffix code. Check the power input voltage for the unit on the
specification label.
AC power
: rating
±
10%, 50/60
±
2 Hz, approx. 2VA
DC power
: rating
±
10%, approx. 2W
(85 – 150V for 110V rating)
■
GENERAL
• Before you remove the unit from its base socket or mount it,
turn off the power supply and input signal for safety.
■
CT Protector
• Temperature of the CT Protector may rise if the signal
conditioner body is left unplugged from the base socket. Be
careful not to get burned when you need to touch it.
■
ENVIRONMENT
• Indoor use
• When heavy dust or metal particles are present in the air,
install the unit inside proper housing and ventilate it.
• Do not install the unit where it is subjected to continuous
vibration. Do not apply physical impact to the unit.
• Environmental temperature must be within -5 to +60
°
C (23
to 140
°
F) with relative humidity within 30 to 90% RH in order
to ensure adequate life span and operation.
CT Protector
Zero Adjustment
Input Filter Selector
(OFF)
(ON)
4 Hz – 200 kHz
4 Hz – 2 kHz
Span Adjustment
Body
Base Socket
Connection
Diagram Label
Front Cover
Specification
Label
