Models 900CT & 900BT

General

Single Channel –

Certified

Specifications

9

1784 Chessie Lane, Ottawa, IL 61350 • Tel: 800/252-7074, 815/434-7800 • FAX: 815/434-8176

e-mail: sales@freqdev.com

• Web Address: http://www.freqdev.com

Input Characteristics

Input Impedance:

Differential

2 M

Ω Shunted by 47pF

Single Ended

1 M

Ω Shunted by 47pF

Input Voltage:

Linear Differential*

20V p-p (Gain Set at 0 dB)

Max Safe Differential

Any Continuous Value between

±100V

Max Safe Common Mode

Any Continuous Value between

±50V

Bias Current

30 pA typ.; 175 pA max.

Common Mode Rejection ratio with

2k

Ω source unbalance and 0 dB Gain

> 60dB, DC to 50kHz

Output Characteristics

Full Power Bandwidth**

DC to 600kHz

Related Output

Short Circuit Output Current

±100 mA continuous

Output Protection

±200 mA without damage

Output Impedance

50

Ω

Offset Voltage

Adjustable to Zero at Front Panel

(Range

±500mV dc)

Power Supply

AC Line Power Operation

900CT

10 Watts max.

900BT

15 Watts max.

Voltage Frequency Range-Rear Panel:

115 V

105 to 125Vac @ 50/60Hz

230 V

210 to 250Vac @ 50Hz

Fuse

115 V=0.2 Amp., 230 V = 2X-0.1 Amp.

Battery Operation (900BT)

Time for full Charge

10 – 12 hours

Battery Life

Approx. 500 Charge/Discharge Cycles

Battery Charger

Automatic Uninterruptible

3 Status Levels

Battery Operation

6 Hours typ.

Temperature

Operating Temperature:

0 °C to +50 °C

Storage Temperature:

-25 °C to +70 °C

Mechanical

Dimensions

3.7"H x 8.66"W x 10.6"D

9.4cmH x 22.0cmW x 27.0cmD

Weight

900CT

3.5 lbs; 0.157 kgs

900CT

4.9 lbs; 0.219 kgs

Case Material

ABS plastic

Color

Light Gray

* Signal plus common mode voltage cannot exceed 20V peak to peak for a linear output.

** Output characteristics of input amplifier with filter in BYPASS mode.