張力儀是測量絲網受到拉力作用時其內部與固定絲網接觸體之間的相互牽引力大小的儀器

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更新時間：2024-06-26

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張力儀是測量絲網受到拉力作用時其內部與固定絲網接觸體之間的相互牽引力大小的儀器。張力儀有機械式和電子式兩種，測量張力的單位用牛頓/厘米表示。張力也可以用相對數(shù)值來表示。厘米張力儀就是用相對數(shù)值表示張力的一種，是通過張力儀自身重量使絲網下沉的深度的數(shù)值(毫米)來計算，張力數(shù)值可從指示盤上直接得到，或者從控制盤上間接得到。張力儀有手工操作和機械操作兩種。張力儀是檢驗絲網印版質量的重要的檢測儀器。為保證得到制版要求的張力，在繃網過程中或繃網后都要使用張力儀測量。

德國施密特（Hans Schmidt & Co GmbH）專注于卷材張力檢測和張力控制有超過60年歷史，是大張力測量儀表生產商。旗下產品有張力計Schmidt ETMB – ETMPB，一款通用型張力儀，主要用在線切割加工機器上。

3 Ranges

0.5 - 100, 2 - 200, 2 - 500 (g or cN)

Three long, closely-spaced slender shafts with precision guide rollers or pins at their ends combine with the latest in microprocessor technology to make this instrument top choice for all limited-access, tension measuring applications.

Schmidt ETMB models feature miniature, high speed rollers for filament speeds up to 2000 m/min. ETMPB models features non-rotating, ceramic pins for speeds to 6000 m/min.

Reversible display for right or left-hａnd operation

User Selectable Units Grams or Centinewtons
New filament guide for easy acquisition of material
Adjustable damping for easier readings when tension fluctuates
Backlit LCD Display
Stores AVG, MIN, MAX and PEAK tension values which can be recalled in the display
Powered by rechargeable Lithium Polymer battery, 60 hr battery life w/ Universal voltage AC-Charger supplied
Continuous, automatic Zero Setting (independent to measuring position)

Accuracy	±1 % full scale ±1 digit or better (typical ±0.5 % full scale)
Factory Calibration Material	0.20 mm ? Polyamid Monofilament
Minimum Access Space Required	3/4" x 1" (20 x 26mm)
Guide Roller / Pin Material	Rollers, chrome-plated steel, std : 2000 m/min Ceramic pins, optional : 6000 m/min
Measuring Principle	Strain-gauge bridge
Maximum Sensing-Roller Displacement	0.5mm
Scanning Frequency	100 / sec., except 40/sec. in PEAK mode
Display Update	0.5 sec. (2 times per second)
Thermal Drift	0.25% full scale per degree C
Natural Frequency	250 Hz
Over Range	10% FS, without accuracy guarantee
Overload Protection	200%
Temperature Limits	50-115° F (10-45° C)
Automatic Zero	± 20% of range
Rel. Humidity Limit	85%
Battery/Life	3.6 volt, Lithium-Polymer rechargeable / Approx. 60 hrs Life (3.5 Hr recharge)
Battery Charger	100...240 V AC with plug adapters (EU/USA/UK)
Low Battery Voltage Indicator	LO BAT, or equivalent display
Weight (net/gross)	12 oz. (340 g) / 2.75 lbs (1250 g)
Dimensions	13" x 1-3/4" x 1" (330 x 45 x 25mm)
Complete Kit	Tension Meter, Battery, Recharger and instructions, all supplied in a foam-fitted carrying case.
Housing Material	Aluminium frame profile with plastic outer casing (PVC)

訂貨清單

The Checkline ETMB / ETMPB is supplied as a complete kit including tension meter, long life 9V lithium battery, universal voltage charger and instruction manual in a foam-fitted plastic carrying case

訂貨型號

Model	Range	Resolution	Rollers or Pins
ETMB-100	0.5-100.0	0.1	Rollers
ETMB-200	2-200	1	Rollers
ETMB-500	2-500	1	Rollers
ETMPB-100	0.5-100.0	0.1	Ceramic Pins
ETMPB-200	2-200	1	Ceramic Pins
ETMPB-500	2-500	1	Ceramic Pins