Product Specification Sheet
Model: MS5508
MS5500Plug-In Frequency/Analog Converter with Isolated Single Output

DESCRIPTION

51The MS5508 is a plug-in frequency to analog converter thatconverts pulse train signals from flow sensors and the like
into commonly used DC signals and provides an isolated
single output.

SZ

85

ORDERING CODE

MS5508 --_Model
136.5

Power Supply
A: 100 to 240V AC (50 to 60Hz)
D: 24V DC
P: 100 to 240V DCInput
O: Dry contact or open collector(Pull-up: Approx. 13V, 3.3kΩ)
A: AC voltage pulse(Threshold voltage: Approx. 0.06Vp-p)
D: DC voltage pulse(Threshold voltage: Approx. 2V)
I: 4 to 20mA DC pulse(Threshold current: Approx. 8mA)
Y: Other input signals and/or threshold voltages

OutputA: 4 to 20mA DC
D: 0 to 20mA DC
Z: Other DC current signals

1: 0 to 10mV DC
2: 0 to 100mV DC
3: 0 to 1V DC
4: 0 to 10V DC
5: 0 to 5V DC
6: 1 to 5V DC
3W: ±1V DC
4W: ±10V DC
5W: ±5V DC
0: Other DC voltage signals

Options
No code: None
/A: Sensor power supply: 24V DC (±10%), 2-wire type
/B: Sensor power supply: 12V DC (±10%), 2-wire type
/C: Sensor power supply: 24V DC (±10%), 3-wire type
/D: Sensor power supply: 12V DC (±10%), 3-wire type
/E: Sensor power supply: 5V DC (±10%), 2-wire type
/F: Sensor power supply: 5V DC (±10%), 3-wire type
/H: Polyurethane conformal coating/X: Others (Special order)* For non-standard options, ask MTT for availability.

(mm)

ORDERING INFORMATION
To place an order, please use the ordering code format
as shown on the left. Also specify a measuring
frequency range.
(e.g.) MS5508-A-AA (0 to 850Hz)
Other Ordering Examples:
For an input code of “Y”: MS5508-A-YA (0 to 500Hz /Input DC voltage pulse: 0 to 12V / SH = 8.5V, SL = 2.5V)
For an input code of “Y”: MS5508-A-YA (0 to 500Hz /Input AC voltage pulse: 200Vp-p / S = 2Vp-p)* SH = Threshold level HI, SL = Threshold level LO,
S = Threshold level
Note: For DC current pulse input, the range should bespecified between 0-100μA and 0-100mA.

SPECIFICATIONS●POWER SECTION
PowerRequirements

100 to 240V AC: 85 to 264V AC (47to 63Hz)
24V DC: 24V DC±10%
100 to 240V DC: 85 to 264V DC
Power Sensitivity Better than ±0.1% of span for eachpower supply range.
Power Line Fuse
160mA fuse
Maximum Power ConsumptionPower
100-240V AC 24V DC
100-240V DC
Approx.
Approx.
Approx.
8.3VA
2.6W
8.3W

●INPUT SECTION
Input Resistance
Voltage Input Model(DC)

1MΩ min.
(Standard, 5V input)
Without power: 30kΩ min.
Current Input Model250Ω (Standard for 4 to 20mA)(DC)
Note: When a 2-wire type sensor
power supply is specified, ashunt resistor of 100Ω is used.
Allowable Input Voltage
DC Voltage Input
30V DC max., continuous.
Model
DC Current Input
Model
AC Voltage Input
Model

With power:

40mA DC max., continuous.
200Vp-p AC max., continuous (up to±100V with reference to 0V).
Rev. 1.50

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Product Specification Sheet

Input Pulse Width
Duty Ratio
Maximum Sensor
Supply Current
Ranges Available

Model: MS5508

Plug-In Frequency/Analog Converter with Isolated Single Output

20μs min.
40 to 60%30mA

DC Voltage Pulse
0 to 300V
1 to 300V
0 to +300%
Hi-Lo voltage:
0.2V min.
Input Frequency
Within the range between 0-20Hz and0-20kHz.
Input Spec. Ex.: For 10 to 15V DC voltage pulse input, theinput voltage span is 5V and the bias +200%.
Input Range
Input Voltage Span
Input Bias
Threshold Voltage

AC Voltage Pulse-300 to 300V
0.1 to 600Vp-p
N/A
50mVp-p min.

●OUTPUT SECTION
Allowable Output Load
Voltage Output (DC) 1V span and up
2mA max.
10mV
10kΩ min.
100mV
100kΩ min.
Current Output (DC) 4 to 20mA750Ω max.
Zero Adjustment
Approx. ±5% of span.
(Adjustable by the front-accessibletrimmer.)
Span Adjustment
Approx. ±5% of span.
(Adjustable by the front-accessibletrimmer.)
Ranges Available
Current Signal
Voltage Signal
Output Range (DC)
0 to 20mA-10 to 10V
Output Span (DC)
4 to 20mA
10mV to 20V
Output Bias
0 to 100%-100 to 100%
* For current output signals, the accuracy of any current
output smaller than 0.1mA is not guaranteed.
Output Spec. Ex. 1: For 4 to 20mA output, the output span is
16mA and the bias +25%.
Output Spec. Ex. 2: For -1 to 4V output, the output span is
5V and the bias -20%.

●PHYSICAL
Installation
Mounting Direction
Screwing TorqueWiring
ExternalDimensions
WeightWall/DIN rail mounting
Vertical
0.78 to 1.18 [Nm] * Recommended
M3.5 screw terminal connection
W51 × H85 × D136.5 mm(including the socket)
Main unit: 200g max.
Socket: 60g max.

●MATERIAL
HousingSocket
Screw Terminal

ABS resin (UL 94V-0)
ABS resin (UL 94V-0)
Galvanized steel with trivalentchromate finish
Glass fabric, epoxy resin(FR-4: UL 94V-0)

Printed Circuit
Board

TERMINAL ASSIGNMENTS+ OUTPUT− OUTPUT+ INPUT− INPUT
EX +N.C.
P (+)
N (−)





POWER



●PERFORMANCE
Accuracy Rating
Temperature
EffectResponse Time
Input Frequency
20Hz
200Hz
2kHz
20kHz
CMRR
Isolation
Insulation
ResistanceDielectricStrength
Surge Withstand
Capability
Operating
Environment
Storage
Temperature

Better than ±0.3% of span.
Ripple: 0.2%p-p or less of span (for atleast 10% input) (at 25°C±5°C)
Better than ±0.2% of span per 10°C
change in ambient.
0 to 90% with a step input at 100%
8s max.
1s max.
500ms max.
500ms max.
100dB min. (500V AC, 50/60Hz)
3-way isolation between input,output, and power.
100MΩ min. (@ 500V DC) between
input, output, and power.
Input / Output / Power: 2000V ACfor 1 minute (Cutoff current: 0.5mA)
Tested as per ANSI/IEEE
C37.90.1-1989.
Ambient temperature: -5 to 55°C
Humidity: 5 to 90% RH(non-condensing)-10 to 60°C

Rev. 1.50

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Product Specification Sheet

Model: MS5508

Plug-In Frequency/Analog Converter with Isolated Single Output

BLOCK DIAGRAMSENSORPOWER
SUPPLY

EX ++Z

F/VSAmp.

CONVERSIONINPUTISOLATIONISOLATION

CIRCUITCIRCUITOUTPUT
CIRCUITOUTPUT +OUTPUT −−

POWER
SUPPLYP (+)

POWERCIRCUITN (−)

For dry contact or open collector input:

For voltage pulse input:

+13V
3.3kΩ

⊕
⊖

F/V
CONVERSION

INPUT
SIGNAL

F/V
CONVERSION⊕⊖

When a 2-wire sensor is used:
Note: The connections may vary depending on the type of the sensor used.

⊕2-WIRE SENSOR⊖SENSORPOWER
SUPPLY
F/V100Ω

CONVERSION

Rev. 1.50

Page: 3/3