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All content & data © Newtons4th Ltd 2010-2026.
Firmware downloads and installation guides for all N4L instruments.
Important: Upgrading firmware does not affect calibration validity. However, downgrading firmware will result in loss of calibration — do not downgrade without consulting N4L.
| Document | Type | Size | Link |
|---|---|---|---|
| Updating N4L Instrument Firmware (Oct 2024, D000726 Iss 4) | 92 KB | ||
| CommView2 User Manual v2.0 | 460 KB |
Use CommView2 to upgrade firmware on all N4L instruments.
| File | Type | Size | Link |
|---|---|---|---|
| CommView2 v1.4 | ZIP | 384 KB | ZIP |
Updating firmware will have no effect on the instrument’s calibration validity.
| Model | File | Type | Size | Link |
|---|---|---|---|---|
| N4Axx | N4A_1_34 | ZIP | 216 KB | ZIP |
Updating firmware will have no effect on the instrument’s calibration validity.
| Model | File | Type | Size | Link |
|---|---|---|---|---|
| PPA500 | PPA500_v2_87 | ZIP | 276 KB | ZIP |
| PPA1500 | PPA1500_v2_87 | ZIP | 276 KB | ZIP |
| PPA25/26xx | PPA25_26xx_v1_100 | ZIP | 408 KB | ZIP |
| PPA3500 | PPA3500_v2_53 | ZIP | 608 KB | ZIP |
| PPA45xx | PPA45xx_v2.187.03 | ZIP | 696 KB | ZIP |
| PPA55xx | PPA55xx_v2.187.03 | ZIP | 700 KB | ZIP |
| PPA55x1 | PPA55x1_v2.187.03 | ZIP | 700 KB | ZIP |
| PPA5512 | PPA5512_v2.187.03 | ZIP | 492 KB | ZIP |
| PPA5532 | PPA5532_v2.187.03 | ZIP | 492 KB | ZIP |
Updating firmware will have no effect on the instrument’s calibration validity.
| Model | File | Type | Size | Link |
|---|---|---|---|---|
| PSM1700 | PSM1700_1_67 | ZIP | 108 KB | ZIP |
| PSM1735 | PSM1735_1_61 | ZIP | 220 KB | ZIP |
| PSM2200 | PSM2200_v3_28 | ZIP | 892 KB | ZIP |
| PSM3750 | PSM3750_v1_51 | ZIP | 268 KB | ZIP |
Updating firmware will have no effect on the instrument’s calibration validity.
| Model | File | Type | Size | Link |
|---|---|---|---|---|
| SFRA45 | SFRA45_v2_17 | ZIP | 184 KB | ZIP |
Updating firmware will have no effect on the instrument’s calibration validity.
| Model | File | Type | Size | Link |
|---|---|---|---|---|
| SLM3505 | SLM3505_v2_97 | ZIP | 208 KB | ZIP |
| Driver / Document | Type | Size | Link |
|---|---|---|---|
| PSM and PPA – LAN Connection Guide (Issue 4, July 2016) | 40 KB | ||
| FTDI USB Driver (CDM20808 Win32/64) | ZIP | 1.2 MB | ZIP |
| ATEN USB-RS232 Driver (UC232a) | ZIP | 7.3 MB | ZIP |
| Document | Type | Size | Link |
|---|---|---|---|
| Saving PPA Configuration Settings | 148 KB | ||
| Saving PSM3750 Configuration Settings | 148 KB |
All content & data © Newtons4th Ltd 2010-2026.