CT237B
Data Sheet
CT237B
Amp Clamp Accessory
Current Transformer
This current transformer probe measures AC or DC current. It converts high current to a low level millivolt signal for input directly
into a test instrument. It can be used with standard DMMs, recorders, digital or analog meters, data loggers/DAS, oscilloscopes,
or other test and measurement instruments.
AC/DC current clamp, 200 A■
■
Zero adjust knob
No hassle
warranty
No waiting.
No shipping
charges.
Our commitment to
high-quality products
and customer service
is demonstrated by
our industry exclusive
“No Hassle” warranty.
In the unlikely event
that an Amprobe Test
Tool requires warranty
service, any of our
local dealers are
authorized to replace
it, on the spot.
(note: $500 MSLP limit)
Included Accessories
Attached leads and users manual.
Amprobe® Test Tools
300V
www.Amprobe.com
CT237B Amp Clamp Accessory
General Specifications
Max Conductor Size 20 mm (0.75 in)
Lead Length 1.5 m (59 in)
Power 9 V battery, NEDA 1604, JIS 006P, IEC 6F22
Battery Life 50 hours (alkaline)
Operating Temperature Range – 0 °C to + 50 °C at < 80 % R.H.
Storage Temperature Range – 20 °C to + 85 °C
Temperature Coeffcient 0.1 % of rdg per 1 °C
Dimensions 55 mm x 210 mm x 30 mm (2.2 in x 8.3 in x 1.2 in)
Weight 290 g (.64 lb.)
Warranty One-year
Specifcations (23 °C ± 1 °C, < 75 % R.H.)
Function Range Accuracy
DC Current
20 A: ± (1 % of rdg + 0.03 A)
200 A: ± (1 % of rdg + 0.3 A)
Meter Input Impedance 10 kW min. and 100 pF max.
Division Ratio 1000 to 1
Output 20A: 1 A DC at jaws= 10 mV DC to meter
200A: 1 A DC at jaws= 1 mV DC to meter
AC Current
DC–10 kHz 20 A, 200 A rms 20 A (< 5 kHz) ± (1 % of rdg + 0.03 A)
20 A (5 to 10 kHz) ± (2 % of rdg + 0.03 A)
200 A (< 2 kHz) ± (1 % of rdg + 0.3 A)
200 A (2 to 5 kHz) ± (2 % of rdg + 0.3 A)
200 A (5 to 10 kHz) ± (5 % of rdg + 0.3 A)
Meter Input Impedance 10 kW min. and 100 pF max.
Division Ratio 1000 to 1
Output 20 A: 1 A AC at jaws = 10 mV AC to meter
200 A: 1 A AC at jaws = 1 mV AC to meter
Overload Protection 700 A for 10 minutes and 20 minutes OFF
300 V AC on uninsulated conductors
Data Sheet
Amprobe® Test Tools
website: www.Amprobe.com
email: info@amprobe.com
Everett, WA 98203
Tel: 877-AMPROBE
Amprobe® Test Tools
Amprobe® Test Tools Europe
In den Engematten 14
79286 Glottertal, Germany
Tel.: +49 (0) 7684 8009 - 0
©2007 Amprobe Test Tools. All right s reserved.
7/2010 P N: 1646512 D-US-N Rev C
www.Amprobe.com