张力仪是测量丝网受到拉力作用时其内部与固定丝网接触体之间的相互牵引力大小的仪器。张力仪有机械式和电子式两种，测量张力的单位用牛顿/厘米表示。张力也可以用相对数值来表示。厘米张力仪就是用相对数值表示张力的一种，是通过张力仪自身重量使丝网下沉的深度的数值(毫米)来计算，张力数值可从指示盘上直接得到，或者从控制盘上间接得到。张力仪有手工操作和机械操作两种。张力仪是检验丝网印版质量的重要的检测仪器。为保证得到制版要求的张力，在绷网过程中或绷网后都要使用张力仪测量。

德国Honigmann专注于卷材张力检测和张力控制有超过60年历史，是世界最大张力测量仪表生产商。旗下热销产品张力计Honigmann RTM-20D-2，用于大尺寸缆索和超大张力的测量应用，例如幕墙拉索。

大量程钢索/钢绳拉力计

Honigmann RTM-20D-2 - 2,200 lb

Honigmann RTM-20D-5 - 11,000 lb

Honigmann RTM-20D-10 - 22,000 lb

Honigmann RTM-20D-20 - 44,000 lb

Max Cable Diameter - 1.5" (38.1mm)

The RTM 20D is a cable tension meter specially developed for the determination of (high) tension in cables like guy wires, support cables, architectural cables etc. The RTM 20D can be placed directly on the cable. De device will show the tension on the display.

The RTM is very simple and handy to use. Simply hold and "clip" it to the rope to be tested and use the large hand screw to deflect the rope to a fixed angle. The resultant force will then affect the load cell and measure the tension in the wire rope. The resultant signal is then digitally processed and displayed in a graduation selected and pre programmed. The RTM 20D can display kN, klbs or in ton.

The RTM 20D is suitable for measurements up to 44,000 Lbs (22 tons) and cable diameters up to 1.5". De measured values are directly shown on the display without use of a reference table.

Measuring principle:

The RTM is placed on the cable under a predefined angle. This angle is then used to determine the tension in the cable. Since the gauge is calibrated to the cable that is measured it will directly show the tension value. These calibrations can be saved inside the gauge and it is possible to save up to 10 different cable calibrations. Values can be displayed in N or Lbs

Safety:

The RTM 20 determines quickly, safely, accurately and conveniently cable tension. It can withstand force two times its rated capacity without damage. The RTM features hardened steel cable guides which ensures trouble free operation in the toughest outdoor environments.