Jewell Instruments A701-2 (4X) Specifications

Model A701-2A/B(4X)

IP65 Weatherproof Platform Tiltmeter

The model A701-2(4X) Weatherproof Platform Tiltmeter
is a precision analog tiltmeter with resolution to 1
μradian or better. Units are rated IP65 waterproof for
use in wet, humid, and corrosive environments, and
easily install on any horizontal surface via three built-in
invar leveling legs. Output is a stable ±8 DC voltage (±16
VDC differential), and the powerful internal electronics
will drive cables over 1000m. Use this precision
tiltmeter for volcano monitoring, geotechnical
engineering, structural monitoring, platform leveling,
and any application where advanced protection from
weather is required.

A701-2A(4X) (High-gain) A701-2B(4X) (Mid-Range)
Angular Range
Scale Factor
Resolution <1 μradian 1 μradian
Repeatability 2 μradians (static) 2 μradians (static)
Non-Linearity 1% 2%
Time Constant 0.15 sec
Kz Temp Coefficient (bias/°C)
Ks Temp Coefficient (%/°C) 0.04%/°C (typical)
Output ±8VDC (single ended); ±16VDC (differential)
Channels X-tilt, Y-tilt, Temperature
Output Impedance 270 ohms
Temperature Output
Power ±11 to ±15 VDC @ +11 and -6mA, 250 mV ripple max, reverse polarity protected
Environmental
Dimensions 6 x 6 x 4 inches (15 x 15 x 10 cm), 3 lb (1.4 kg)
Materials Anodized and painted aluminum
Cable 3m (10 ft) multiconductor cable + overall shield, PVC Jacket, connectors included

Specifications subject to change without notice on account of continued product development

±8000 μradians (±0.46°)

1 μradian/mV

±4 μradians/°C (typical)

0.1°C/mV typical (single ended; 0°C = 0mV)

-25 to +70°C operation; -30 to +100°C storage, IP65 (NEMA 4X)

±4.0

0.5°/V

Ordering Code Accessories

Part No. Description

70304

62301

62304

Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103

[e-mail] • www.jewellinstruments.com • Tel [phone]

Power/signal cable, 10-conductor
(specify total length on order)
Female panel receptacle (mates to
62302 connector included with tiltmeter)
Extra female in-line receptacle
(one included with tiltmeter)

L00234 Rev. B

Model A701-2A/B(4X)

Wire Color

Function

Bendix

Connector

IP65 Weatherproof Platform Tiltmeter

Dimensions:

Top view

Side view

Dimensions in inches (mm)

Wiring/Pin-out:

Red +12 to +15V Power H
Black Power Ground A
Violet -12 to -15V Power B
Blue +Y-tilt out G
Brown -Y-tilt out K
Gray -X-tilt out J
Green +X-tilt out C
White Signal ground E
Yellow Temperature out D

Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103

[e-mail] • www.jewellinstruments.com • Tel [phone]

L00234 Rev. B