Information in this document is subject to change without notice. No part of this document may be reproduced or transmitted in any
form or by any means, electronic or mechanical, for any purpose, without the express written permission of DH Instruments, a
Fluke Company 4765 East Beautiful Lane Phoenix AZ 85044-5318 USA.
DH Instruments makes every effort to ensure the accuracy and quality of its published materials; however, no warranty, expressed
or implied, is provided. DH Instruments disclaims any responsibility or liability for any direct or indirect damages resulting from the
use of the information in this manual or products described in it. Mention of any product or brand does not constitute an
endorsement by DH Instruments of that product or brand. This manual was originally composed in English and was subsequently
translated into other languages. The fidelity of subsequent translations cannot be guaranteed. In case of conflict between the
English version and another language version, the English version takes precedence.
DH Instruments, DH, DHI, AMH-38, AMH-100, PG7000, PG7xxx are trademarks of DH Instruments, a Fluke Company, registered
and otherwise.
Krytox is a registered trademark of the Dupont de Nemours Company.
Pyrex is a registered trademark of Dow Corning.
2.2.2 GAS SUPPLIES.............................................................................................................................................7
2.2.2.1 DRIVE AIR SUPPLY ..................................................................................................................................7
2.3 SETTING UP THE AMH FOR OPERATION............................................................................................8
2.3.1 GENERAL CONSIDERATIONS.....................................................................................................................9
2.3.2 SETTING UP THE AMH.................................................................................................................................9
2.3.2.1 CONNECTING THE DRIVE AIR SUPPLY.................................................................................................9
2.3.2.2 CONNECTING THE DRIVE VACUUM SUPPLY (AMH-38 ONLY)..........................................................11
This manual is designed to be used in conjunction with the PG7000 Piston Gauges Manual, to assist in
the set up, operation and maintenance of an AMH-38 or AMH-100 automated mass handling system.
(CAUTION) is used in throughout the manual to identify user warnings and cautions.
(NOTE) is used throughout the manual to identify operating and applications advice and
AMH-38 and AMH-100 are automated mass handling systems for PG7000 piston gauges. The AMH
system allows mass values to be loaded and unloaded automatically in response to mass or pressure
entries from the PG7000 terminal or over the PG7000’s COM1 or IEEE-488 interface.
The AMH system lifts the masses off the PG7000 piston, selects the masses to be loaded, and places the
selected masses back onto the piston. This is accomplished using pneumatic and electrical actuation
hardware.
The AMH must be used with a special AMH mass loading bell and mass set. Manipulation of
conventional manual masses cannot be automated.
Both AMH models are accessories to PG7000 Platforms that can be used with an existing manual system
or delivered as part of a new system. Some older PG7000 Platforms require modification before they can
accept the AMH system. Please consult DHI or your DHI representative to determine if an existing
PG7000 Platform is AMH ready.
AMH-38 is compatible with PG7601 and PG7607 Platforms and handles a mass set of nominally 13, 25
or 38 kg. It includes a vacuum chamber for the establishment of a vacuum reference around the masses
when operating in absolute by vacuum mode.
AMH-100 is compatible with PG7201, PG7202, PG7302 and PG7307 Platforms and handles a mass set
of nominally 40, 60, 80 or 100 kg. It does not include a vacuum chamber so the masses are always in
ambient pressure conditions.
AMH-38™ AND AMH-100™ OPERATION AND MAINTENANCE MANUAL
1.3SPECIFICATIONS
15 VDC @ 2 A, 30 W max. consumption
15 to 35 ºC
41 cm H x 37 cm W x 38 cm D (16.3 in. x 14.6 in. x 15 in.)
41 cm H x 41 cm W x 36 cm D (16.3 in. x 16.1 in. x 14.1 in.)
18 kg (40 lbs)
12 kg (25 lbs)
RS232 (COM1)
275 kPa (40 psi), ± 10%, minimal flow
550 kPa (80 psi), ± 10%, minimal flow
Quick connector equivalent to Swagelok QM Series (QM2-B-200),
Use with DESO (double end shut off) type stem
Quick connector equivalent to Swagelok QM Series (QM2-B-200),
Use with SESO (single end shut off) type stem only.
Power Requirements:
Operating Temperature:
Dimensions:
Weight:
Communications:
Drive Air Supply:
Vacuum Supply:
Pressure Connections:
CE conformance:
AMH-38:
AMH-100:
AMH-38:
AMH-100:
AMH-38:
AMH-100:
AMH-38 only: At least 50 kPa (7.5 pi) under atmosphere, minimal flow
Pressure:
Vacuum:
Available, must be specified
Due to a policy of continuous product improvement, all specifications are subject to change
AMH-38 and AMH-100 are delivered, along with their standard accessories, in a corrugated container
with foam cut outs to hold items in place.
Remove all parts from the shipping box. Be sure not to lose or discard the Accessory Kit.
Inspect all parts for damage. If damage is noted, report it to your Shipping & Receiving Department and
the delivering carrier for appropriate action.
Inspect for any missing components or accessories referring to Table 1 for AMH-38 or Table 2 for AMH-
100. Should any items be missing, contact DHI or your local DHI representative.
Table 1. AHM-38 Parts List
DESCRIPTION PART #
1 ea. AHM-38 Automated Mass Handler 402061 or
Accessory kit including: 402092 or
1 ea. Operation and Maintenance Manual 550133
1 ea. 15 VDC Power Supply 103986
1 ea. Power Cord 100770 or
1 ea. RS232 cable 100847 or
2 m. 1/8 in. PFA tubing 101392-Z
2 m. 1/4 in. PFA tubing 101450-Z
1 ea. Adaptor, 1/8 in. Swage x 1/4 in. NPT M 102189
1 ea. Tee, 1/4 in. Swage 101487
1 ea. Port Connector, 1/4 in. Swage 101984
1 ea. Quick Connector Stem, 1/8 in. Swage DESO (with red band) 402097
1 ea. Assembly: SESO Quick Connector Stem and Valve 402093
4 ea. Cable Tie, Hook and Loop 103485
1 ea. Tool, 3 mm Hex Wrench (with T handle) 103473
1 ea. O-ring, Viton, 2-273 103493
1 ea. Adaptor, 1/4 in. Swage x 1/4 in. NPT M 101477