CKSR 50-NP LEM USA Inc, CKSR 50-NP Datasheet - Page 13

• Manufacturer Part Number: CKSR 50-NP
• Description: SENSOR CURRENT 50A 5V MOD
• Manufacturer: LEM USA Inc
• Series: CKSRr

Specifications of CKSR 50-NP

• Current - Sensing: 50A
• Accuracy: ±0.8%
• Sensitivity: 12.5mV/A
• Current - Supply: -
• Sensor Type: Flux Gate
• Voltage - Supply: 4.75 V ~ 5.25 V
• Output: 0 ~ 5 VDC
• Frequency: 300kHz
• Response Time: 300ns
• Polarization: Bidirectional
• Operating Temperature: -40°C ~ 105°C
• Package / Case: Module
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 398-1098-5

The following graphs show how the measuring range of each transducer version depends on the external reference
voltage value V
Example with V
• The 6 A version has a measuring range from -12.24 A to +28.5 A
• The 15 A version has a measuring range from -30.6 A to +71.4 A
• The 25 A version has a measuring range from -51 A to +85 A
• The 50 A version has a measuring range from -102 A to +150 A
Upper limit: I
Lower limit: I
Upper limit: I
Upper limit: I
Lower limit: I
Lower limit: I
P
P
P
P
P
P
= -.6 x V
= -40 x V
= -85
REF
= -.6 xV
= -40 x V
= 85
REF
:
= 1.65 V:
REF
REF
REF
REF
+ 44.4
+ 15
+ 185
+ 3.6
(V
(V
(V
(V
(V
(V
REF
REF
REF
REF
REF
REF
= 0 .. 4 V)
= 0 .. 4 V)
= 2.5 .. 4 V)
= 0 .. 2.5 V)
= 0 .. 2.5 V)
= 2.5 .. 4 V)
Example with V
• The 6 A version has a measuring range from +3.6 A to +44.4 A
• The 15 A version has a measuring range from +9 A to +80 A
• The 25 A version has a measuring range from +15 A to +85 A
• The 50 A version has a measuring range from +30 A to +150 A
Upper limit: I
Upper limit: I
Lower limit: I
Lower limit: I
Upper limit: I
Upper limit: I
Lower limit: I
Lower limit: I
P
P
P
P
P
P
P
P
= -24 x V
= 80
= -24 x V
= -80
= -80 x V
= 150
= -80 x V
= -150
REF
= 0 V:
REF
REF
REF
REF
+ 111
+ 
+ 370
+ 30
(V
(V
(V
(V
(V
(V
(V
(V
REF
REF
REF
REF
REF
REF
REF
REF
= 1.2 .. 4 V)
= 0 .. 1.2 V)
= 0 .. 3.7 V)
= 3.7 .. 4V)
= 2.75 .. 4 V)
= 0 .. 2.75 V)
= 0 .. 2.25 V)
= 2.25 .. 4V)
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