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MKS Instruments 1259B Mass Flow Controller PAIR — 100 SCCM N₂ — 0–5 VDCCONDITION
Used university lab surplus equipment in good overall condition. Both units are from the same MKS 1259B configuration and have matching specifications.
These units were removed from a laboratory/CVD system and retain their original MKS identification and calibration labels. Please review all photos carefully for cosmetic condition and exact configuration.
ABOUT THIS LISTING
This listing is for TWO MKS Instruments 1259B mass flow controllers with matching specifications.
Both units are marked:
- MKS Instruments
- Type: 1259B-00100RK-SP113/115-83
- Flow Range: 100 SCCM N₂
- Input: +15 VDC
- Output: 0–5 VDC
- Gas: Nitrogen (N₂)
The two units appear to be the same configuration and are being offered together as a matched pair.
SERIAL NUMBERS
- Unit 1: 43708-1-1H
- Unit 2: 43708-1-1I
CALIBRATION / IDENTIFICATION LABELS
Both controllers retain their original MKS/Coastal Instruments calibration tags and factory identification labels.
The calibration documentation visible on the units indicates configuration for N₂ (nitrogen) and a 100 SCCM flow range.
Because these are older surplus instruments, we are not representing the historical calibration stickers as a current calibration certificate. Buyers should evaluate the photos and specifications for their particular application.
TESTING
Both units have been inspected and photographed as shown.
We have verified the identifying labels, configuration, connectors, and overall physical condition. These are being sold as used surplus laboratory equipment rather than as newly calibrated instruments.
Please note: We do not have the complete original laboratory system available to perform a full process-flow calibration under controlled conditions.
WHAT IS INCLUDED
- Two (2) MKS Instruments 1259B mass flow controllers
- Unit 1: S/N 43708-1-1H
- Unit 2: S/N 43708-1-1I
Only the two controllers shown are included.
IMPORTANT — PLEASE VERIFY YOUR APPLICATION
MKS mass flow controllers were manufactured in many different configurations. Please compare the exact model/type number, gas, flow range, input, output, and other specifications shown in the photographs with the requirements of your system before purchasing.
The exact configuration shown here is:
RETURNS / 30-DAY WARRANTY
This item is warranted for full functionality for 30 days after delivery.
Returns are accepted only for items that are dead on arrival (DOA) or not as described.
Please contact us before initiating a return so we can work with you to resolve the issue.
Buy with confidence.
ASSET IDENTIFICATIONAsset serial numbers and identifying marks have been recorded for return integrity. Items may also be discreetly marked for verification.VISIT OUR store
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KEYWORDS
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