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Specifications, Logbook specifications, General – Measurement Computing LogBook Series User Manual

Page 25: A/d specifications, Analog inputs, Triggering

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LogBook User’s Manual

969591

An Introduction to LogBook 1-15

LogBook Specifications

Specifications are subject to change without notice.

General

Supply Voltage Range: 10 to 45.0 VDC

Power Consumption: 0.9 A @ 15 VDC

Operating Temperature: -40° to 140°F (-40°C to 60°C)

Storage Temperature: -40° to 176°F (-40°C to 80°C)

Humidity: 0 to 95% RH, non-condensing

PC-Card Memory: Standard ATA Type

LogBook/300:

Size: 8½ × 11 × 1¾ in. (216 × 279 × 44 mm)

Weight: 3.3 lb (1.5 kg)

LogBook/360:

Size: 14 × 11 × 3.5 in. (356 x 279 × 89 mm)

Weight: 7.3 lb (3.3 kg)

A/D Specifications

Type: Successive approximation

Resolution: 16 bit

Conversion Time: 10 µs

Monotinicity: No missing codes

Linearity: ±1 bit

Analog Inputs

Channels: 16 single-ended, 8 differential,

expandable up to 256 differential; single-

ended or differential operation is software

programmable.

Connector: DB37 male, P1
Maximum Overvoltage: -35 V, +45 V
Input Current:

Differential: 0.4 µA typical, 0.7 µA max

Single-ended: 0.2 µA typical, 0.35 µA max

Input Impedance:

10 M

differential in parallel with 20 pF

5 M

single-ended in parallel with 30 pF

Calibration: Digital software calibration
Channel-to-channel Crosstalk: 100 dB

Ranges: Unipolar/Bipolar operation is software-programmable

on a per-channel basis.

BIPOLAR

±10V

±5V

±2.5V

±1.25V

±0.625V

±0.3125V

±0.15625V

±(% Reading + µV)

0.015 + 500

0.015 + 500

0.015 + 300

0.015 + 250

0.015 + 150

0.020 + 150

0.050 + 100

UNIPOLAR

0 to +20V

0 to +10V

0 to +5V

0 to +2.5V

0 to +1.25V

0 to +0.625V

0 to +0.3125V

±(% Reading + µV)

0.015 + 500

0.015 + 500

0.015 + 300

0.015 + 250

0.015 + 150

0.020 + 150

0.050 + 100

Triggering

Analog Trigger:

Programmable Level Range: full range of

specified channel

Trigger to A/D Latency: 10 µs max

Digital Trigger:

Logic Level Range: 0.8 V low/2.2 V high

Trigger to A/D Latency: 10 µs max

Software Trigger:

Trigger to A/D Latency: Dependent on PC

Pre-Trigger: Up to 4 gig scans, depends on

PC-card memory