ES-5449 Rev.1
M8YCH
Dual Output Super-mini Signal Conditioners Pico-M Series
CONTROL OUTPUT ISOLATOR
(applicable to HART signal)
Functions & Features
• Providing an isolated DC output at the Installation Base terminals
• Isolates and relays HART signals
• Detecting opencircuit at the output loop
• Space-saving, easy-to-maintain, multi-channel installation base
MODEL: M8YCH-AA-R[1]
ORDERING INFORMATION
• Code number: M8YCH-AA-R[1]
Specify a code from below for [1].
(e.g. M8YCH-AA-R/Q)
• Specify the specification for option code /Q
(e.g. /C01 /V01)
INPUT
Current
A
: 4 - 20 mA DC (Input resistance approx. 250Ω)
OUTPUT
Current
A
: 4 – 20 mA DC (Load resistance 200 - 300 Ω)
(250 Ω ±10% when using HART communication)
POWER INPUT
DC Power
R
: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
[1] OPTIONS
blank
: none
/Q
: With options (specify the specification)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
ADJUSTMENT
/V01
: Multi-turn fine adjustment
RELATED PRODUCTS
• Installation Base or Single Mount Base Socket (model: M8BSx)
This unit must be mounted on dedicated base or socket except Model M8BS2 base.
GENERAL SPECIFICATIONS
Construction
: Plug-in
Mounting screw
: M3 screw (torque 0.3 N·m)
Housing material
: Flame-resistant resin (black)
Power supply
: Via the Installation Base terminals
(model: M8BSx)
(Model M8BS2 is not usable for the M8YC.)
Isolation
: Input to output to power
Zero adjustment
: -2 to +2 % (front)
Span adjustment
: 98 to 102 % (front)
Opencircuit detection
: input current 0 mA when the output loop is open.
Photo MOSFET Relay ON Resistance; 3 Ω max.
INPUT SPECIFICATIONS
■
DC Current
: Input resistor incorporated
Input current
: ≥ 0 mA
OUTPUT SPECIFICATIONS
The output goes below 0 % when the input loop is open.
HART COMMUNICATION
Transmission gain
: Approx. -3 dB (within 1 – 3 kHz)
measured with 250 Ω at output
Loop impedance
: 250 Ω ±10 %
Communication directions
: Bidirectional
INSTALLATION
Current consumption
: Approx. 32 mA
Operating temperature
: 0 to 55°C (32 to 131°F)
Operating humidity
: 30 to 95 %RH (non-condensing)
Mounting
: Installation Base (model: M8BSx)
(Model M8BS2 is not usable for the M8YC.)
Weight
: 50 g (1.76 oz)
PERFORMANCE in percentage of span
Accuracy
: ±0.1 %
Temp. coefficient
: ±0.02 %/°C (±0.01 %/°F)
Response time
: ≤ 0.5 sec. (0 – 90 %)
Line voltage effect
: ±0.1 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
:
1500 V AC @1 minute(input or power to output to ground)
500 V AC @1 minute(input to power)
EXTERNAL DIMENSIONS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM